carrie



C. 8.50m & s'. H. BAKER.

LAMP AND lRIEFLECTDR THEREFOR. APPLrcATmNjILED JUNE I4. 1915.

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CARRIE sworn rom), or oAK'Lnnn, hun saam,FL-.HL nannitgor-rAsnnr-:Nnf

cnmronNIn.A i

vLAMP AND nnmnron rnlnnnron Y.To fall whom it-may concern.'

'Be it'known that we, CARRE Sworn Folin and SAMUEL BAKER, bot-h citizensof .the @United States, residing, respectively, at Oakl 5 f`-1 and.countyof Alameda, and State. 0f Cali" di'l'use rays evenly throughoutthe zone to be .i illuminated, and avoid the focusing in 'certainspotsof any of the light rays. n

Lamp reflectors as ordinarily constructed light-rays, and the lightprojected from such, -standardreilectors or lamps providedwith f thesameis, in-.many instances, objectionable ".,jand `for certain uses highly'undesirable, as i fon-instance, in headlights for automobiles landother. vehicles, where the use of high 'power lights is desirable, butthe. glare of the lightA temporarily blinds persons facing 'the same,and results in many casualties, 'as

. whenv thesuch as are usually employed on automobiles ,andthe-lilik,With lamps or reflectors' orf- -ganized in'faccordance with theinvention, athis trouble is entirely eliminated, 'as the 35 diffusedlight' emitted does not have the Lblinding eil'ect upon aI person facingthe g same, .no part of the reflector tending to bring the rays to asharp focus. Lamps or -freflectors'organizedin accordance with the ,$0invention-.may be employed wherever any artificial light is needed` for.either interior or 'exteriorl illumination, the/zone .of ray 1projection being forward of the reflector and such zone extending inevery direction forward of the plane of the extreme forward portion ofthe reflector, jthis distribu- .tion rendering lamps provided with the-hereinafterdescribed reflector adaptable for service. as street lampsas Well asfor vehicle headlights and many other; purposes.

With the above andother objects in View, including rela-tive simplicityand inexpensiveness in construction, .length of-life or durability andgeneral eliciency, the inven- 35 tion consists in the novel and usefulprovi- Specification of Letters'atent.

Application'led June 14, 1915. I Serial No. 33,9j1 0.

State of California, have jointly'i'n-V i ect onlyldiffnsed light raysand proj ectsuch are so designed as. to provide' a focus for the ing,iu'the fembodiment drivers of' meeting vehicles are suddenly. confrontedby powerfulheadligh tssuitable.

' vlate`n' ted Mar. 14, 91 6. .I

sion, construction, l formation, coir'ibination,l

association ,and relative arrangement ot'A parts, .members and features,all as.hereniafter. described, shown inthe drawing' and f inallypointedout iniclaims, j l In the drawing: vFigure 1 is a front elevation ofalamporganiz'ed in accordance with the invention; Figi' 2'i`s a sideeleva-tion fof the same; Fig. centralhorizontal sectional View takenyupon the-line a'csaf, (55

Fig. 1,'and-,looking in the-direction of the appended arrows, thisview-.showing the reilector, lamp casing-and glass frontin'section;Fig.. Iiis a central vertical, seetional view through the glassi''r'ont, the Viewv being Ataken-upon the .line azw, Fig. 1, andlookingin the; direction ofthe appended arrows; 'and Fig.

5 is a fragmentary plan view of-.an automobile provided lwith a pair oflamps or- 75 gamzed in accordance With the invention, and so mounted asto properlyillu'mnate l" 1tlile/roadivay or course taken by an autoino-Corresponding designated by the same 'reference characters. -eferrmgwlth f articularity to the draw of the invention" therein shown, Adesignates/aflieadlight or.; jganized to embody the invention, B desig85 'nates a reflector therefor, C- designates illuminating mea-ns," andD- designates supporti ing means for such headlight. inthe vform of theinvention shown in the drawing, the headlight A comprisesin ad- 99dltion to the reflector B andA illuminating! means C, a casingaprovdedwith a rim b hinged as at o to the casing o, and ja'fro'nt glassal mounted inv the rim b, and forming, together with the casing a, a'Weatherproof 95 housing for the reflector and illuminating means withother attendant features. l `The rciie'ctor B comprises a concave bodyof suitable materialV which maybe of polished metal, silvered glass, orany other 10U reflecting material, such reflector B resemblinginf'gcneral contour, the human eye, theV periphery or forward lip 'ofAthe reflector preferably being formed and curved identically as are theupper1 vand 105 lower eyelids of the human eye, this forma.- tionmaking' it possible to insure a wide angle distribution of the lightrays emitted, the zone into-Which lthe rays are projected being includedin' the Wide angle, `which 110 reflector, lamp, casing and `70 partsinall the iigure's are' 80 angle is approximately 180 degrees.' The Wideangle distribution of light rays takes place in every directionforwardof'a plane in Which the reflector periphery is in partlocated.The forward lip 6 or periphery of ithereflector'is arranged in averticallydis posed which, inthe .present instance, has its center of'curvature at 4the rear ofthe lamp; The

lip 6` .is preferably rounded as at 6, 'and the reflector is so formedthat no focusving of the, light rays at any substantial-ly cylindricalsurface point will ocr our, particular attention bein .given in theVperipheral lip portion 6d. 'formed with' formation jof therefiector tot e part (Wimmediately behind the. illuminating means C,

so that 'no rearwardly ranging rays from such illuminating means'. could4projected .straight ahead from such poritioi'rb of the V.re ector B.Assuming that vthe lamp is in I peripheral portions 6 and 6a' of i'`the.'.overhanging upper 4and the position 'shown in thedrawing, the`side are rearward' lower pedue to the 'lip portions 6@ and e# Theripheral4 eyelid-like formation of the reflector.

.a slightly different curve than the peri heral flip' portion 6e.

i 5 The il uminating M ansCis shown as in eieceraiighi-r, negras bulb s'of which is iwufd 4portionf-Bl",4 suchforward portion '8n 'preferably.of ellipticlformation at its'for- {bei-ng' positiouedcentrally ofthereiiector 4and' approxima. and lowe' 35 erably heavily erred-,as at 8',this frosted vforwardlyfrom the base-8c of the lamp to {.fsii'eh point-a's is' necessaryto shut' o or ,40

4d irn "the "rearwardly ranging rays of the' ly inline with lthe upperperipheral lipfs 6 and (if thereof. The glssbulb 8 ofthe electric .lightis preffrosted' or otherwise dark- 'f-ligllt, th'us assisting inpreventing .the afo1e of the forward-portion,"such shading 8El Vcovering1-producing'fportio .'Sfof the lamp.

The support Apreferablyv comprises bifurcated .bracket 9betweenthe-'furcations and 9b of which the' lan1p-`is sul'ip'orted, asby means of bosses' 9c provided onfthe I {lam-p casing, suchfbracketser-ving as a cond vehiclef properlyf'secure the glass front'fl and itsrim" b"in closed position against the cas# ing a., it being understoodthat such glass supporting rim 'b' and the complementarily formed casingedge ll'eonform as nearly as possible to the eyeliddike periphery of thereflector, so as not to in' any Way interfere with the. pro]ectiotn oflight raysfrom vsuch rele'ctc'nV Y 4.

of .the reector is surf-ace extending yvenient means 'of securingthe-.lamp to a ps,

, n v.LYconventional "latch v10-is provided 'to lip of the 4lamppreventing an strong lliglht In Fig. 5 is illustrated the preferredmarmer of employing a pair of lamps'organized to embody the inventionvir/hen such lamps are tobe used fore stated, the peripheral lipat'one'side edge as automobile headlights. As hereinbeof the reflectordiiers in curvature from the peripheral lip at the other 'side edgerefiector, conforming in to the formation or arrangement ofthe' eyelidsof the human eye, and when the lamps are tobe V:1s-shown in Fig. 5, thelampsarearmnged. so that the side peripheral-.lip lhavin the greatercurvature is'outwardlydispo with respect to the longitudinal axis oftheautomobile, and furthermore,the llamps maybe ofthe faced slightlyoutward'so as to thoroughly light up the sides o fjtlre road as -yellasthe'vv roadimmediately ahead oif'the autgn'iobileghe lamps not :facedslightly vouteven Weret ward, the wide anglev light distribution,namely,v180 degrees, would ing up of the road or ftreck-innakingpturnsy.

in .ram-ce of the tammgfef ign-anhin,

'ceeder and advaneerg; when the lamps to be used as just' described,-thereflector-sand lamps'may be almost identical'expl'in'thf presents noone4 reiiecto'r -is lsimply position of its 'greater curved end, thisall? lowingV pair vto bodying the inventionare used'for -Sllh purposes'as street or mterior-lighti'ng,' it is thus avoiding. the confusion*ofbothgproaf are f90 the' reileetorssof both lamlisofthe bemade 'bymeans of the sa'im eori1r`r` or forms.. When -reecto'rs or -lamps em s10o.'

not so important that-one side peripheral The-operation, method of-useand ja vantages of the improvements in lamps or be' of greatercurvatureor I extension than the4 other side peripheral-Jig.'

-f L05.Y

'reflectors constituting the invention -4 readily understood fromthe'foregoingv description taken in connection 'withthe'acg 3companying' drawing' and thej fo 0W statement( The light rays-"from thla which is placed Well forward' th eld, all portions of suc'lriieldequidistant i from the reflector being equally illuminated. 'Us

Having thus disclosed our invention, what' .12 this resulting in'j'anevenfloodff We clainiand desireito; Secure by rutv f 'ent-is; Y

1. The combination of a V1*'eflectorwith source of light arrangedsubstantially'at the f'ousthereof, said' reflector itl' .horizontalsection through the reector bea vertically disposed substantiallycylindriing constantly variable .so that the iield of cal surface, thecurve of a horizontal section 25 the' projected light Within a radius ofsubthrough the reector being constantly varistantially 170 is ofpractically uniform in# able so that .the field of the projected lightthe focus thereof,. said reflector having an FRANCIS L. IsGRrGG.

aperture vvith sides curved substantially as aperture elongatedlaterally in opposite diare the lids of the human eye, the curve of. arections and formed with edges arranged in tensity. Within a radius ofsubstantially 170 is of 2. The combination of a reflector with apractically uniform intensity and the curvasour'ce of light arrangedsubstantially at the ture of a vertical section through the re- 30 focusthereof, said reflector having an ap- Hector being *also constantlyvariable to erture elongated laterally in opposlte direcproduce 'asubstantially uniform field of tions and the edges of which are arrangedpractically the same intensity for a much in a vertically disposedsubstantially cyrestricted vertical radius. lindrical surface, the curveof a horizontal In testimony whereof, We have signed our '351' sectionthrough the reflector being constantly names to this specication in thepresence of variable so that the iield of the projected t'wo subscribingwitnesses.

light Within a radius of substantially. 170 CARRIE SWPE FORD. 'is' fpractically uniform intensity. SAMUEL H. BAKER.

3. The combination of a reflector with a Witnesses:

source of light arranged slllbstantially at ALFRED DACHLER,

